CN201820683U - Low-voltage moving contact of disconnecting link - Google Patents
Low-voltage moving contact of disconnecting link Download PDFInfo
- Publication number
- CN201820683U CN201820683U CN2010205764184U CN201020576418U CN201820683U CN 201820683 U CN201820683 U CN 201820683U CN 2010205764184 U CN2010205764184 U CN 2010205764184U CN 201020576418 U CN201020576418 U CN 201020576418U CN 201820683 U CN201820683 U CN 201820683U
- Authority
- CN
- China
- Prior art keywords
- bakelite
- disconnecting link
- moving contact
- connecting plate
- low pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low-voltage moving contact of a disconnecting link. One end of the moving contact is moveably connected with the disconnecting link hanging mouth of a fixed contact through a disconnecting link hanging rod; the moving contact is composed of an insulating bakelite and two pairs of bakelite connecting plates fixedly connected at two ends of the moving contact; two ends of the bakelite are provided with connecting holes; the connecting holes are provided with insulating sleeves; insulating plates are arranged between the bakelite and the bakelite connecting plates; the bakelite connecting plates, the bakelite and the insulating plates are connected through bolts; and the bolts are arranged in the insulating sleeves in a penetrated mode. In the low-voltage moving contact of the disconnecting link, the insulating plates are arranged between the two ends of the bakelite and the bakelite connecting plates of the low-voltage moving contact of the disconnecting link, meanwhile, the insulating sleeves are arranged between the bakelite and the connecting bolts, thus, when the disconnecting link is over heated, the heat amount transmitted from the disconnecting link to the bakelite can be reduced, the temperature at the connecting part at two ends of the bakelite is lowered, thereby avoiding the disconnecting link from being burned; and because the bakelite does not contact with the backlite connecting plates directly, when the disconnecting link is over heated, the insulating plates and the insulating sleeves are burnt firstly, thus the cost is reduced, and the disconnecting link is convenient to replace.
Description
Technical field
The utility model relates to electric field, and particularly urban distribution network low voltage power transmission disconnecting link specifically is a kind of low pressure disconnecting link moving contact.
Background technology
In low-voltage power supply system, the low pressure disconnecting link is installed on the distribution transformer in large quantities.In numerous accidents that the low pressure disconnecting link often occurs, cause the bakelite on the moving contact to be burnt out because temperature is too high, make and must change moving contact component, line upkeep cost height.The bakelite of existing low pressure disconnecting link moving contact directly is connected with the bakelite connecting plate at its two ends by bolt, be good being electrically connected between bakelite connecting plate and the fixed contact, be provided with safety plate between the bakelite connecting plate, therefore when disconnecting link is overheated, bakelite and bakelite connecting plate connection are burnt out often, make the disconnecting link cisco unity malfunction.
Summary of the invention
The purpose of this utility model is to provide a kind of low pressure disconnecting link moving contact, and described this low pressure disconnecting link moving contact will solve in the prior art when disconnecting link is overheated bakelite in the low pressure disconnecting link moving contact and often be burnt out and make the technical problem of disconnecting link cisco unity malfunction.
The purpose of this utility model is achieved through the following technical solutions: the first end of this movable contact passes through the loose joint of disconnecting link hanging column on the disconnecting link mouth hanging of fixed contact, this moving contact is made of bakelite and two pairs of bakelite connecting plates being packed in its two ends, be provided with the gap between these two pairs of bakelite connecting plates, between two bakelite connecting plates of a side, be provided with safety plate, the bakelite two ends are provided with connecting hole, in this connecting hole, be provided with insulating sleeve, be provided with thermal insulation board between bakelite and the bakelite connecting plate, the bakelite connecting plate, bakelite is connected by bolt with thermal insulation board, and this bolt is arranged in this insulating sleeve.
Be provided with boss in the bakelite connecting plate, the protrusion end face of boss is the plane, and the boss plan position approach on the every pair of bakelite connecting plate is corresponding.
The last lower edge of bakelite connecting plate is the arc outer of turning up.
The outside of described bakelite connecting plate is equipped with spring and by bolt every pair of bakelite connecting plate is linked together respectively.
Thermal insulation board and insulating sleeve are made of heat resistant plastice.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model is provided with thermal insulation board between the bakelite two ends of low pressure disconnecting link moving contact and bakelite connecting plate, simultaneously, between bakelite and connecting bolt, be provided with insulating sleeve, like this when disconnecting link is overheated, can reduce by disconnecting link and pass to the bakelite quantity of heat production, reduce the temperature of junction, bakelite two ends, avoid it to be burnt; Simultaneously, because bakelite and bakelite connecting plate are not directly contacted, what therefore at first burn when overheated is thermal insulation board and insulating sleeve, reduces cost, also is convenient to change.
Description of drawings
Fig. 1 is the structural representation that adopts low pressure disconnecting link of the present utility model.
Fig. 2 is the structural representation of low pressure disconnecting link moving contact of the present utility model.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the utility model low pressure disconnecting link moving contact, the first end of this movable contact passes through 1 loose joint of disconnecting link hanging column on the disconnecting link mouth hanging of fixed contact 2, this moving contact is made of bakelite 3 and two pairs of bakelite connecting plates 4 being packed in its two ends, be provided with the gap between these two pairs of bakelite connecting plates 4, electric conductor 21 when closing a floodgate on the fixed contact 2 inserts in this gap and contacts with moving contact formation conduction, between two bakelite connecting plates of a side, be provided with safety plate 5, bakelite 3 two ends are provided with connecting hole, in this connecting hole, be provided with insulating sleeve (not drawing among the figure), the external diameter of this insulating sleeve is slightly littler than the connecting hole at bakelite two ends, be provided with thermal insulation board 6 between bakelite 3 and the bakelite connecting plate 4, bakelite connecting plate 4, bakelite 3 is connected by bolt 7 with thermal insulation board 6, this bolt 7 is arranged in this insulating sleeve, and thermal insulation board and insulating sleeve are made of heat resistant plastice.The last lower edge of bakelite connecting plate 4 is the arc outer flange 41 that turns up.The outside of described bakelite connecting plate 4 is equipped with spring 42 and by bolt 43 every pair of bakelite connecting plate 4 is linked together respectively.
Also can be provided with boss in the bakelite connecting plate, the protrusion end face of boss is the plane, boss plan position approach on the every pair of bakelite connecting plate is corresponding, and the bakelite connecting plate is electrically connected with the formation of fixed contact two sides by this boss plane, can improve the performance that connects of moving contact and fixed contact like this.
Claims (5)
1. low pressure disconnecting link moving contact, the first end of this movable contact passes through the loose joint of disconnecting link hanging column on the disconnecting link mouth hanging of fixed contact, this moving contact is made of bakelite and two pairs of bakelite connecting plates being packed in its two ends, be provided with the gap between these two pairs of bakelite connecting plates, between two bakelite connecting plates of a side, be provided with safety plate, it is characterized in that: the bakelite two ends are provided with connecting hole, in this connecting hole, be provided with insulating sleeve, be provided with thermal insulation board between bakelite and the bakelite connecting plate, bakelite connecting plate, bakelite and thermal insulation board are connected by bolt, and this bolt is arranged in this insulating sleeve.
2. low pressure disconnecting link moving contact as claimed in claim 1 is characterized in that: be provided with boss in the bakelite connecting plate, the protrusion end face of boss is the plane, and the boss plan position approach on the every pair of bakelite connecting plate is corresponding.
3. low pressure disconnecting link moving contact as claimed in claim 1 is characterized in that: the last lower edge of bakelite connecting plate is the arc outer of turning up.
4. low pressure disconnecting link moving contact as claimed in claim 1 is characterized in that: the outside of described bakelite connecting plate is equipped with spring and by bolt every pair of bakelite connecting plate is linked together respectively.
5. low pressure disconnecting link moving contact as claimed in claim 1, it is characterized in that: thermal insulation board and insulating sleeve are made of heat resistant plastice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205764184U CN201820683U (en) | 2010-10-26 | 2010-10-26 | Low-voltage moving contact of disconnecting link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205764184U CN201820683U (en) | 2010-10-26 | 2010-10-26 | Low-voltage moving contact of disconnecting link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820683U true CN201820683U (en) | 2011-05-04 |
Family
ID=43918629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205764184U Expired - Fee Related CN201820683U (en) | 2010-10-26 | 2010-10-26 | Low-voltage moving contact of disconnecting link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820683U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826138A (en) * | 2016-06-06 | 2016-08-03 | 温州罗格朗电器有限公司 | Releasing mechanism of small circuit breaker |
| CN105957764A (en) * | 2016-07-15 | 2016-09-21 | 国家电网公司 | Device for monitoring temperature of contact of knife switch in real time |
| CN110289183A (en) * | 2019-07-02 | 2019-09-27 | 浙江永贵电器股份有限公司 | A kind of quick-release gear and switching device |
-
2010
- 2010-10-26 CN CN2010205764184U patent/CN201820683U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826138A (en) * | 2016-06-06 | 2016-08-03 | 温州罗格朗电器有限公司 | Releasing mechanism of small circuit breaker |
| CN105957764A (en) * | 2016-07-15 | 2016-09-21 | 国家电网公司 | Device for monitoring temperature of contact of knife switch in real time |
| CN110289183A (en) * | 2019-07-02 | 2019-09-27 | 浙江永贵电器股份有限公司 | A kind of quick-release gear and switching device |
| CN110289183B (en) * | 2019-07-02 | 2024-02-27 | 浙江永贵电器股份有限公司 | Instantaneous separating mechanism and switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20121026 |